Finding the Fourth Proportional to 1,368,009.88, 1,887,820.68 and 747,787.48
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Solution
The fourth proportional to 1,368,009.88, 1,887,820.68 and 747,787.48 is: 1,031,928.71
Step by Step Solution
- Step 1: Write the proportion equation
1,368,009.88 : 1,887,820.68 = 747,787.48 : x - Step 2: Convert to fraction form
1,368,009.88/1,887,820.68 = 747,787.48/x - Step 3: Cross multiply
1,368,009.88x = 1,887,820.68 × 747,787.48 - Step 4: Simplify right side
1,368,009.88x = 1,411,688,668,989.09 - Step 5: Solve for x
x = 1,411,688,668,989.09/1,368,009.88 - Step 6: Final answer
x = 1,031,928.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.